University of Oulu

M. Särestöniemi, K. Sayrafian, M. Sonkki and J. Iinatti, "A Preliminary Study of On/Off-Body Propagation Channels for Brain Telemetry Using a Flexible Wearable Antenna," 2023 IEEE 17th International Symposium on Medical Information and Communication Technology (ISMICT), Lincoln, NE, USA, 2023, pp. 1-6, doi: 10.1109/ISMICT58261.2023.10152221.

A preliminary study of on/off-body propagation channels for brain telemetry using a flexible wearable antenna

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Author: Särestöniemi, Mariella1,2; Sayrafian, Kamran3; Sonkki, Marko4;
Organizations: 1Centre for Wireless Communications, Faculty of Information Technology and Electrical Engineering, University of Oulu, Finland
2Health Sciences and Technology, Faculty of Medicine, University of Oulu, Finland
3Information Technology Laboratory, National Institute of Standards and technology (NIST), Maryland, USA
4Ericsson Antenna Technology Germany GmbH, Germany
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2023
Publish Date: 2023-10-09


Flexible electronics are envisioned to play a major role in future wearable medical devices. An important component of this technology is flexible antennas. This paper presents a preliminary study of on-body and off-body propagation channels in Body Area Networks (BAN) using a small Ultra WideBand (UWB) flexible wearable antenna. The research is carried out with physical measurements in an anechoic chamber and a small laboratory room. The on-body measurements include propagation channels between two wearable devices placed on the head and various locations on the arm (i.e., shoulder to wrist). The off-body measurements cover propagation channels between a head-mounted device and an external device placed at various distances from the body. The wearable devices in these measurements use a small flexible antenna that can easily conform to the surface of the body. The measurements are conducted to better understand and characterize the wireless communication channels in applications such as brain monitoring or brain computer interface. The measurement results show that the UWB flexible antenna presented here performs well for both on-body and off-body communication channels.

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Series: International Symposium on Medical Information and Communication Technology
ISSN: 2326-828X
ISSN-E: 2326-8301
ISSN-L: 2326-828X
ISBN: 979-8-3503-0417-6
ISBN Print: 979-8-3503-0418-3
Pages: 1 - 6
DOI: 10.1109/ISMICT58261.2023.10152221
Host publication: 2023 IEEE 17th International Symposium on Medical Information and Communication Technology (ISMICT)
Conference: International Symposium on Medical Information and Communication Technology
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This research is funded by Academy of Finland Profi6 funding, 6G-Enabling Sustainable Society (6GESS), University of Oulu, which is greatly acknowledged.
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